This paper is inspired by Joyce’s remarks on the last episode of Ulysses, where  he aims  to  depict  an  earth  that  is  both  “prehuman  and  presumably posthuman.”  While  some  critics  interpret  Molly,  in  the  last  chapter  as “primordial matter” or a “body without organs,” my focus is on the posthuman aspect, which is closely related to the prehuman. I argue that Joyce’s portrayal of the posthuman aligns with a critique of liberal humanism, as he examines anthropocentrism through the lens of an extramarital affair within the patriarchy. Using  Deleuze’s  concept  of  “becoming-woman,”  I  explore  how  Bloom’s transformation into a “womanly man” connects with the broader themes of the Anthropocene.  The  analysis  reveals  that  Bloom  completes  the  process  of becoming-woman by seeking forgiveness from Molly in a realm where reality and fantasy blur. Molly, already embodying posthuman traits, affirms Bloom’s transformation by saying, “yes I said yes I will Yes,” leading to their alliance in  a  new  assemblage  distinct  from  traditional  Adam  and  Eve  imagery. Ultimately,  Molly  illustrates  a  posthuman  earth  by  erasing  existing  human knowledge.